Clarissa has just completed her second semester in college. She earned a grade of D in her 4-hour discrete math course, a grade of A in her 4-hour psychology course, a grade of B in her 5-hour physics course, and a grade of C in her 3-hour studio art course. Assuming that A equals 4 points, B equals 3 points, C equals 2 points, D equals 1 point, and F is worth no points, determine Clarissa's grade-point average for the semester. Clarissa's grade point average is.- (Round to two decimal places as needed.)

8. 11

15 10 24 15

Diagonalize the matrices in Exercises 7-20, if possible. The roul eigenvalues for Exercises 11-16 and 18 are included below the matrix.